Question $3(20$ Points$)$: Given the travel times between zones, trips produced at each zone are $15$ for Zone $1$ and $15$ for Zone $2$; trips attracted to each zone are $10$ for Zone $1$ and $20$ for Zone $2.$

Please use the gravity model with the impedance function f$($C$\_($iji$))=1//$C$^(2)$ij to generate the trip distribution matrix $($The convergence criterion is within $10$ percent of the productions and attractions.$).$